What Is the Cause for Cloudy Centers Appearing in Lambda

question 24

Multiple Choice

What is the cause for cloudy centers appearing in lambda plaques on an Escherichia coli confluent plate?

• A) A low multiplicity of infection prevents the appearance of large numbers of lysed cells.
• B) Cell debris forms a physical barrier between uninfected cells and virions.
• C) Compounds in agar or nutrient medium protect bacterial cells from infection.
• D) A large number of infected cells become resistant to bacteriophage infection.
• E) Some infected cells become lysogens and start growing up where the infection began.

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Definitions:

Current Ratio

A liquidity ratio that measures a company's ability to pay short-term obligations with its short-term assets, calculated as current assets divided by current liabilities.

Inventory Turnover

A measure of how many times a company's inventory is sold and replaced over a period.

Average Sale Period

The average time taken to convert inventory into sales, also known as inventory turnover period.

Accounts Receivable Turnover

A financial ratio that measures how effectively a company is collecting on its credit sales by dividing net credit sales by average accounts receivable.